How do I get a story to go viral?

After my dad passed away in December we found a brass candle holder we believe came from his church. We had seen him use it at Christmas time, decorated with greenery and topped with a pillar candle on his fireplace mantle. After he passed, we noticed an inscription on the brass. Apparently it was a memorial to a female parishioner who had died in a fire in the early 1900s.

My first inclination was to return it to the church, however I was able to work forward to one of her grandsons. Unfortunately he died in 1986 and I haven't been able to find out any more about his children.

I would like to write a story or have someone write a story and see if I can find the descendents of this woman to give the memorial to. I thought about the local newspaper, but I doubt anyone still lives in this area that would know anything about the family. The grandson died in another suburb at least 30 miles away from the city where the church is located.

I really don't want to do the "holding up a sign on facebook" thing. Is there another way to get a story to go viral to reach the maximum number of people who may be connected to this family?